Tags help you to categorize your Network Load Balancers in different ways. For example, you
            can tag a resource by purpose, owner, or environment.
You can add multiple tags to each Network Load Balancer. If you add a tag with a key that is
            already associated with the Network Load Balancer, it updates the value of that tag.
When you are finished with a tag, you can remove it from your Network Load Balancer.
            Restrictions
             
             
             
             
             
        - 
                Maximum number of tags per resource—50 
- 
                Maximum key length—127 Unicode characters 
- 
                Maximum value length—255 Unicode characters 
- 
                Tag keys and values are case-sensitive. Allowed characters are letters,
                    spaces, and numbers representable in UTF-8, plus the following special
                    characters: + - = . _ : / @. Do not use leading or trailing spaces. 
- 
                Do not use the aws:prefix in your tag names or values because it
                    is reserved for AWS use. You can't edit or delete tag names or values with
                    this prefix. Tags with this prefix do not count against your tags per resource
                    limit.
 
 
            - Console
- 
                    To update the tags for a load balancer- Open the Amazon EC2 console at
         https://console.aws.amazon.com/ec2/. 
- 
                            In the navigation pane, choose Load Balancers. 
- 
                            Select the check box for the Network Load Balancer. 
- 
                            On the Tags tab, choose Manage tags. 
- 
                            To add a tag, choose Add tag and enter the tag key and
                                tag value. Allowed characters are letters, spaces, numbers (in UTF-8), and
                                the following special characters: + - = . _ : / @. Do not use leading or
                                trailing spaces. Tag values are case-sensitive. 
- 
                            To update a tag, enter new values in Key or
                                Value. 
- 
                            To delete a tag, choose Remove next to the tag. 
- 
                            Choose Save changes. 
 
- AWS CLI
- 
                     
                        To add tagsUse the add-tags command. The following example
                            adds two tags. aws elbv2 add-tags \
    --resource-arns load-balancer-arn\
    --tags "Key=project,Value=lima" "Key=department,Value=digital-media"
 To remove tagsUse the remove-tags command. The following example
                            removes the tags with the specified keys. aws elbv2 remove-tags \
    --resource-arns load-balancer-arn\
    --tag-keysprojectdepartment
 
- CloudFormation
- 
                     
                        To add tagsDefine a resource of type AWS::ElasticLoadBalancingV2::LoadBalancer resource 
                            to include the Tagsproperty.
 Resources:
  myLoadBalancer:
    Type: 'AWS::ElasticLoadBalancingV2::LoadBalancer'
    Properties:
      Name: my-nlb
      Type: network
      Scheme: internal
      Subnets: 
        - !Ref subnet-AZ1
        - !Ref subnet-AZ2
      SecurityGroups: 
        - !Ref mySecurityGroup
      Tags:  
        - Key: 'project'
          Value: 'lima'
        - Key: 'department'
          Value: 'digital-media'